<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>webpack</title>
  <style>
    img {
      display: block;
      width: 100px;
      height: 100px;
    }
  </style>
</head>

<body>

  <div id='root'>余</div>
  <img id='img' src="" alt='我是一张图片' />

</body>

</html>